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<html>
<head>

  <title>iron-iconset-svg</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
  <script src="../../web-component-tester/browser.js"></script>
  <script src="../../test-fixture/test-fixture-mocha.js"></script>

  <link rel="import" href="../iron-iconset-svg.html">
  <link rel="import" href="../../iron-meta/iron-meta.html">
  <link rel="import" href="../../iron-icon/iron-icon.html">
  <link rel="import" href="../../promise-polyfill/promise-polyfill.html">
  <link rel="import" href="../../test-fixture/test-fixture.html">

</head>
<body>

  <test-fixture id="TrivialIconsetSvg">
    <template>
      <iron-iconset-svg name="foo"></iron-iconset-svg>
      <iron-meta type="iconset"></iron-meta>
    </template>
  </test-fixture>

  <test-fixture id="MirroredIconsetSvg">
    <template>
      <iron-iconset-svg name="mirrored-icons" rtl-mirroring>
        <circle id="circle" cx="20" cy="20" r="10"></circle>
        <symbol id="rect" viewBox="0 0 50 25" mirror-in-rtl>
          <rect x="0" y="0" width="50" height="25"></rect>
        </symbol>
      </iron-iconset-svg>
    </template>
  </test-fixture>

  <test-fixture id="RtlContainer">
    <template>
      <div dir="rtl"></div>
    </template>
  </test-fixture>

  <test-fixture id="StandardIconsetSvg">
    <template>
      <iron-iconset-svg name="my-icons" size="20">
        <svg>
          <defs>
            <circle id="circle" cx="20" cy="20" r="10"></circle>
            <rect id="square" x="0" y="0" width="20" height="20"></rect>
            <symbol id="rect" viewBox="0 0 50 25">
              <rect x="0" y="0" width="50" height="25"></rect>
            </symbol>
          </defs>
        </svg>
      </iron-iconset-svg>
      <div></div>
      <iron-icon></iron-icon>
    </template>
  </test-fixture>

  <script>

    suite('<iron-iconset>', function () {

      suite('basic behavior', function () {
        var iconset;
        var meta;
        var loadedPromise;

        setup(function () {
          loadedPromise = new Promise(function(resolve) {
            window.addEventListener('iron-iconset-added', function(ev) {
              if (ev && ev.detail === iconset) {
                resolve();
              }
            });
          });
          var elements = fixture('TrivialIconsetSvg');
          iconset = elements[0];
          meta = elements[1];
        });

        test('it can be accessed via iron-meta', function () {
          expect(meta.byKey('foo')).to.be.equal(iconset);
        });

        test('it does not have a size', function () {
          var rect = iconset.getBoundingClientRect();
          expect(rect.width).to.be.equal(0);
          expect(rect.height).to.be.equal(0);
        });

        test('it fires an iron-iconset-added event on the window', function() {
          return loadedPromise;
        });
      });

      suite('when stamping in an RTL context', function() {
        var iconset;
        var rtlContainer;

        setup(function() {
          iconset = fixture('MirroredIconsetSvg');
          rtlContainer = fixture('RtlContainer');
        });

        test('icons marked as mirror-in-rtl are mirrored', function() {
          iconset.applyIcon(rtlContainer, 'rect');
          var svg = rtlContainer.firstElementChild;
          var computedStyle = window.getComputedStyle(svg);
          var transform = computedStyle.transform || computedStyle.webkitTransform;
          expect(transform).to.be.eql('matrix(-1, 0, 0, 1, 0, 0)');
        });

        test('icons not marked as mirror-in-rtl are not mirrored', function() {
          iconset.applyIcon(rtlContainer, 'circle');
          var svg = rtlContainer.firstElementChild;
          var computedStyle = window.getComputedStyle(svg);
          var transform = computedStyle.transform || computedStyle.webkitTransform;
          expect(transform).to.be.eql('none');
        });

        test('many mirrored icons only call getComputedStyle once', function() {
          sinon.spy(window, 'getComputedStyle');

          for (var i = 0; i < 3; ++i) {
            iconset.applyIcon(rtlContainer, 'rect');
          }

          expect(window.getComputedStyle.callCount).to.be.eql(1);
          window.getComputedStyle.restore();
        });
      });

      suite('when paired with a size and SVG definition', function () {
        var iconset;
        var div;

        setup(function () {
          var elements = fixture('StandardIconsetSvg');
          iconset = elements[0];
          div = elements[1];
        });

        test('it does not have a size', function () {
          var rect = iconset.getBoundingClientRect();
          expect(rect.width).to.be.equal(0);
          expect(rect.height).to.be.equal(0);
        });

        test('appends a child to the target element', function () {
          expect(div.firstElementChild).to.not.be.ok;
          iconset.applyIcon(div, 'circle');
          expect(div.firstElementChild).to.be.ok;
        });

        test('can be queried for all available icons', function () {
          expect(iconset.getIconNames()).to.deep.eql(['my-icons:circle', 'my-icons:square', 'my-icons:rect']);
        });

        test('supports any icon defined in the svg', function () {
          var lastSvgIcon;

          iconset.getIconNames().forEach(function (iconName) {
            iconset.applyIcon(div, iconName.split(':').pop());
            expect(div.firstElementChild).to.not.be.equal(lastSvgIcon);
            lastSvgIcon = div.firstElementChild;
          });
        });

        test('prefers a viewBox attribute over the iconset size', function () {
          iconset.applyIcon(div, 'rect');
          expect(div.firstElementChild.getAttribute('viewBox')).to.be.equal('0 0 50 25');
        });

        test('uses the iconset size when viewBox is not defined on the element', function () {
          iconset.applyIcon(div, 'circle');
          expect(div.firstElementChild.getAttribute('viewBox')).to.be.equal('0 0 20 20');
        });
      });

      suite('Adding / removal from iron-icon', function () {
        var iconset;
        var div;
        var ironIcon;

        setup(function () {
          var elements = fixture('StandardIconsetSvg');
          iconset = elements[0];
          div = elements[1];
          ironIcon = elements[2];
        });

        test('be able to remove an iconset from a standard DOM element', function () {
          iconset.applyIcon(div, 'circle');
          Polymer.dom.flush();
          expect(div.children.length).to.be.equal(1);
          iconset.removeIcon(div);
          Polymer.dom.flush();
          expect(div.children.length).to.be.equal(0);
        });

        test('be able to remove an iconset from a Polymer element', function () {
          var baseLength = Polymer.dom(ironIcon.root).children.length;
          iconset.applyIcon(ironIcon, 'circle');
          Polymer.dom.flush();
          expect(Polymer.dom(ironIcon.root).children.length - baseLength).to.be.equal(1);
          iconset.removeIcon(ironIcon);
          Polymer.dom.flush();
          expect(Polymer.dom(ironIcon.root).children.length - baseLength).to.be.equal(0);
        });

      });

    });

  </script>

</body>
</html>
